Bug Description

Unix pathnames whose directories start with :ABSOLUTE followed by one of symbols :WILD, :WILD-INFERIORS, or :UP no longer have a namestring syntax, despite being valid products of PARSE-NAMESTRING:

--
$ sh ./run-sbcl.sh --no-userinit --no-sysinit
(running SBCL from: .)
This is SBCL 1.3.2.69-aff4a0f, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses. See the CREDITS and COPYING files in the
distribution for more information.
* (make-pathname :directory '(:absolute :wild-inferiors))